I. Introduction

 

In recent years, my country's infrastructure investment has been huge, and the motherland has changed greatly. Among them, the role of the pile driver is indispensable, whether it is a viaduct, an overpass, or a bridge across the river, it has its presence everywhere.

 

2. Working principle and technology of pile driver 　

 

Spiral pile driver is a kind of pile driving equipment that drives the drill rod bit to the underground drill through the power head to make holes. The screw pile driver can be divided into two parts: the pile frame and the drilling part. It is mainly composed of walking mechanism, slewing mechanism, power mechanism, hydraulic and transmission mechanism, and operating mechanism. We mainly control its power mechanism and slewing mechanism by frequency conversion to achieve convenient control. The pile frame of the screw pile driver is mainly composed of the top pulley block, the column, the diagonal brace, the chassis, the walking mechanism, the slewing mechanism, the hoisting mechanism, the control room, the hydraulic system and the electrical system. The uprights are folded, with box-shaped cross-section structure and flange connection. Both sides of the column are equipped with circular or square slides as a guide for the power head and the drill rod to move up and down and to resist torsion. The box-shaped foldable column equipped with this drilling rig uses hydraulic cylinders for lifting and lowering, which is convenient and quick, and does not need to be disassembled during transportation. The lower part of the column is hinged with the upper plate, and the middle and rear part is hinged with the diagonal struts. There is a pulley block on the top of the column to complete the take-off and landing of the power head, steel cage and grouting duct. The power head can slide up and down along the slide, and it can be disassembled when consigned.　

 

Process flow: Place the screw pile driver → embed the protective tube → lightly touch the drill bit and then rotate to drill → lower the drill bit → complete the drilling, clear the hole and measure the depth → insert the reinforcement cage and conduit → perform concrete pouring → pull out the protective tube and Clean the pile head and backfill it to form a pile.

 

3. Easy drive ED3100 inverter with load pile driver

Conclusion:

 

Easy-drive ED3100 series inverter with load pile driver, with high speed regulation accuracy, good stability, simple operation, has enough range to deal with different diameter requirements, can meet the needs of different conditions such as varying depths and large differences in geological conditions , At the same time, the manufacturing cost of the gearbox is greatly reduced, the work efficiency is greatly improved, the wear of the machine is also reduced, and the service life is prolonged, which is deeply recognized by users. Infrastructure construction is the cornerstone of the country’s stability. With the rapid development of our country’s economy, higher requirements have been put forward for urban infrastructure construction, laying a good foundation for the application and promotion of frequency converters on piling machines.